US4664281A - Explosion proof enclosure - Google Patents
Explosion proof enclosure Download PDFInfo
- Publication number
- US4664281A US4664281A US06/839,446 US83944686A US4664281A US 4664281 A US4664281 A US 4664281A US 83944686 A US83944686 A US 83944686A US 4664281 A US4664281 A US 4664281A
- Authority
- US
- United States
- Prior art keywords
- cover
- vessel
- enclosure
- flange
- flanges
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000004880 explosion Methods 0.000 title claims abstract description 30
- 238000005304 joining Methods 0.000 claims abstract description 8
- 230000013011 mating Effects 0.000 claims description 16
- 230000009467 reduction Effects 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 2
- 239000002360 explosive Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000010791 quenching Methods 0.000 claims description 2
- 230000000295 complement effect Effects 0.000 claims 2
- 230000003467 diminishing effect Effects 0.000 claims 1
- 230000008030 elimination Effects 0.000 claims 1
- 238000003379 elimination reaction Methods 0.000 claims 1
- 238000002156 mixing Methods 0.000 claims 1
- 230000000979 retarding effect Effects 0.000 claims 1
- 238000003801 milling Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000003351 stiffener Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000009429 electrical wiring Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/08—Distribution boxes; Connection or junction boxes
- H02G3/088—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings or inlets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
Definitions
- Applicants' invention relates to electrical enclosures of the explosion-proof type normally used in environments which may contain explosive mixtures of gases or dust. Applicant is aware of U.S. Pat. Nos. 3,317,072; 3,573,343; 3,582,535; 3,585,273; 3,724,706; 3,853,291; and 3,974,933, the disclosures of which are incorporated by reference herein.
- the present invention relates to an enclosure, such as a cast box, in particular to an enclosure that is of the type that is especially useful as an explosion-proof receptacle for electrical apparatus that is subject to sparking.
- the present enclosure is preferably cast and consists of two principal parts, a box or enclosure vessel and a cover. Each of the parts is unitary in itself, being formed of a single piece of metal.
- the box portion may be formed with access holes which may be threaded, joined to conduit, and sealed to make a complete explosion tight path for electrical wiring, as is known in the art.
- the present box is preferably made of cast aluminum and has a design such that the bolt holes are either formed in the process of casting or milling.
- the holes may be tapped, but may also be formed without tapping so the self tapping screws or bolts can be used to fasten the cover onto the vessel portion.
- One object of the enclosure is to prevent explosions from propagating out and spreading over a wide area of a building or the like.
- the enclosure is strong and rigid to contain the explosion.
- the construction of the enclosure, particularly with mating flanges between the box and cover, make an extremely strong apparatus. By forming the box and cover reasonably accurately, machining of the parts is minimized and a tight fit adds strength to the enclosure.
- Another object of the invention is to provide a seal for the fitting of the cover onto the vessel that can be provided inexpensively, yet will afford a very tight engagement.
- the mating flanges of the box and cover are in close contact to restrict, cool and quench burning gases resulting from an internal explosion.
- the flanges aid in obtaining a tight seal and make it possible to obtain long flame paths that retard escape of the flame from the box.
- the seal By placing an elastomeric type seal between the box and cover additional advantages are obtained. First, the propagation of the explosion referred to above is better contained. Second, the seals retard entry of corrosion producing chemicals and moisture. The seal thus prevents interference with the contacts, switches, and other electrical devices contained in the enclosure. The seal may be joined by an adhesive or other conventional means and installed in the enclosure vessel or in the cover, thereby eliminating some expense.
- Another object is to provide lugs for the mounting of the box upon a base or another support. These lugs can be separate from the box itself. By making the lugs separate, the casting of the box is considerably simplified. And more importantly, the lugs are designed so that they can be mounted to extend either to the sides or to the ends of the box by a very simple mounting change, requiring no more than swiveling the legs about their mounting screws.
- a further object of the invention is to provide a means to relieve the bolt load on the bolts joining the cover to the enclosure, in the event that an internal explosion occurs in the box. This reduces the number of bolt holes and bolts that are required, reducing the expense in manufacturing the box, and also greatly increasing the convenience of the use of the box, since fewer bolts need be installed or removed to complete an installation of the box or to examine or work in the interior of the box after installation.
- a futher object of the invention is to provide means whereby the cover is made exceptionally rigid so that it will remain in explosion-retaining contact with the enclosure vessel when subjected to an internal explosion.
- a further object is to provide means to maintain the explosion tight seal between the cover and the enclosure vessel, while eliminating or reducing the number of bolts or other joining means.
- Another object of the invention is to provide simplified access to the interior of the enclosure. By reducing the number of bolts access is made easier and quicker since fewer bolts must be loosened. Access is provided so that the seal between the box and the cover is easily broken.
- FIG. 1 is a perspective view of applicants' enclosure
- FIG. 2 is a partial top view of applicants' enclosure with a cover partially broken away;
- FIG. 3 is an end view of applicants' enclosure
- FIG. 4 is a partial cross-sectional view of applicants' enclosure taken along the plane of line 4--4 in FIG. 3;
- FIG. 5 is a partial cross-sectional view of applicants' enclosure taken along the plane of 5--5 in FIG. 2;
- FIG. 6 is a partial cross-sectional view of applicants' enclosure taken along the plane of line 6--6 in FIG. 3;
- FIG. 7 is a partial bottom view of applicants' enclosure with the bottom surface partially broken away.
- FIG. 8 is a partial cross-sectional view, similar to FIG. 5, showing a further embodiment.
- the box generally indicated at 10 includes two main portions, a cover 12 and a lower box or vessel 14.
- the cover 12 and the vessel 14 are flanged and are joined, the cover having a flange 16 and the lower box or vessel 14 having flange 18.
- the cover 12 and vessel 14 are joined by placing the mating surface 20 of flange 16 of cover 12 in cooperation with mating surface 22 of flange 18 of vessel 14, as shown in FIG. 4.
- Mating surfaces 20 and 22 are machined but as can be appreciated can be cast or made through other conventional means, if desired, to provide a close mating relationship between the surfaces.
- Bolts 24 pass through holes 26 in cover flange 16 and thread into holes 28 of vessel flange 18 to clamp cover 12 to vessel 14.
- Holes 26 and 28 may be formed in cover 12 and vessel 14 by a variety of techniques. They may be bored or drilled into flanges 16 and 18 or may be cast into flanges 16 and 18, as desired. If more precision is required than casting allows, the holes may be cast and reamed. Holes 28 in flange 18 of vessel 14 may be threaded to receive bolts 24 or bolts 24 may be of the self-threading type. It will be appreciated that cover 12 and vessel 14 may be cast of electrical grade aluminum and can receive self-threading bolts. Alternatively, bolts with nuts could be used.
- Cover 12 may also have an annular relieved portion 30 in flange 16, as shown, which can receive an elastomeric seal 32.
- the elastomeric seal 32 is preferably joined to cover 12 by an adhesive, not shown, but may also be joined by other methods known in the art. It will be appreciated that the relieved portion may be formed in the vessel flange 18, as shown in FIG. 8 at 130, and seal 32 may be installed therein.
- Vessel 14 may have a plurality of lugs 34 which are joined to the bottom of vessel 14 by bolts 36 as shown.
- Bolts 36 cooperate with bolt holes 38 in the bottom of vessel 14 so that lugs 34 may be affixed to the bottom of vessel 14.
- Holes 38 are placed in vessel 14 at the corners of the bottom in a triangular pattern, as shown. This pattern allows lugs 34 to be selectively installed in either of two positions, as shown in FIG. 7, extending at 90° angles to each other. This selectivity of installation allows lugs 34 to be used in a variety of mounting arrangements which gives great flexibility to the use of the enclosure 10 in a variety of mounting environments.
- bolt holes 38 may be produced by a variety of techniques as noted for holes 26 and 28. If desired, self-threading bolts 36 may be used or holes 38 may be threaded.
- vessel 14 may be provided with reinforced bosses 40 in the interior, as shown.
- Reinforced bosses 40 may be provided with holes 42 which may be threaded, if desired. Holes 42 and reinforced bosses 40 provide mounting sites for fastening electrical connectors and other apparatus at a fixed location in the interior of vessel 14. It will also be appreciated that the side and end walls of vesel 14 may be provided with additional reinforced bosses and access holes, not shown, for connection to conduit and other electrical apparatus, as is known in the art.
- Cover 12 may be provided with milling lugs 44 and vessel 14 may be also provided with milling lugs 46, as shown in FIG. 1.
- Milling lugs 44 and 46 allow the cover 12 or the vessel 14 to be held in a fixed position on a milling machine during desired machining operations, such as flattening mating surfaces 20 and 22, for example.
- relieved portion 48 in cover 12 is of particular importance. It will be appreciated that the relieved portion may also be provided in flange 18 of vessel 14, as shown as 148 in FIG. 8. These relieved portions 48 or 148 allow for a reduction in the stress loading of bolts 24, particularly if an explosion should occur in the interior of vessel 14. The stress reduction may be to one-third of the previous bolt load, for example. The reduction in stress load on bolts 24 allows a further decrease in the total number of bolts 24 required to fasten cover 12 on vessel 14 in an explosion-containing manner. Further, with applicants' new cover structure, as disclosed herein, it is even possible to totally eliminate bolts in some portions of the enclosure vessel and cover combination, such as at the corners.
- Relieved portions 48 and 148 extend about to the center line of bolts 24. These relieved portions 48 and 148 increase the mechanical advantage of the bolts 24 in retaining cover 12 on vessel 14 in an explosion-containing relationship in the event of an explosion or other high internal pressure in the enclosure 10. Relieved portions 48 and 148 reduce the prying action around bolts 24 when the cover 12 is subjected to any internal pressure, that is, relieved portions 48 and 148 prevent the flange 16 of cover 12 from acting as a lever having a fulcrum at the periphery of the flanges 16 and 18.
- Relieved portions 48 and 148 may also be used for removing the cover 12 from vessel 14. By placing a prying tool (not shown) into the relieved portion 48 or 148 and using the prying tool as a lever to pry the cover 12 from the vessel 14. Prying may be required since the mating surfaces 20 and 22 along with elastomeric seal 32 provides a tight seal. However, the prying tool must be carefully placed so that the mating surfaces 20 and 22 and elastomeric seal 32 are not damaged.
- Applicants' stiffening structure 50 shown in FIGS. 1 and 6, it is possible to entirely eliminate the bolts from the flange portions at the corners of cover 12 and vessel 14 throughout an area spanning a substantially 90° arc at the corner. As shown, the arc without bolts has a radius 150 approximate to that of the radius 152 of flanges 16 and 18, see FIG. 2.
- Applicants' stiffening structure 50 is an area of increased thickness in the metal of cover 12 in the vicinity of flange 16 and spanning the chordal distance of the arc of the corner of cover 12. The stiffener 50 extends from the central portion of cover 12 substantially into the area of flange 16 and may terminate closely adjacent to the edge of flange 16.
- Stiffening structure 50 provides an area of substantially increased stiffness in the flange at the corners so that no additional bolts are necessary to hold the flange 16 in a close mating relationship with flange 18 of vessel 14, even when the enclosure 10 is subjected to an internal pressure such as occurs from an internal explosion.
- stiffener 50 approximates that of the central portion of cover 12, plus the thickness of flange 16, as shown in FIG. 4.
- Stiffening structure 50 tapers gradually from the central portion of cover 12 to blend with the flange 16 at its outermost extremity, as shown.
- cover 12 it is helpful to increase the overall strength of cover 12, by making it slightly thicker.
- the slight addition of material increases the stiffness of cover 12 and also increases its bursting strength.
- the addition of material, or lack thereof, is not critical, since the stiffener 50 increases the stiffness of the cover 12 and responds to the stresses at the center of cover 12.
Abstract
Description
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US06/839,446 US4664281A (en) | 1985-10-15 | 1986-03-10 | Explosion proof enclosure |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US78771185A | 1985-10-15 | 1985-10-15 | |
US06/839,446 US4664281A (en) | 1985-10-15 | 1986-03-10 | Explosion proof enclosure |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US78771185A Continuation | 1985-10-15 | 1985-10-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
US4664281A true US4664281A (en) | 1987-05-12 |
Family
ID=27120681
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US06/839,446 Expired - Fee Related US4664281A (en) | 1985-10-15 | 1986-03-10 | Explosion proof enclosure |
Country Status (1)
Country | Link |
---|---|
US (1) | US4664281A (en) |
Cited By (73)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4796159A (en) * | 1986-09-26 | 1989-01-03 | R. Stahl Schalterate GmbH | Explosion protected modular housing |
US4993575A (en) * | 1989-06-13 | 1991-02-19 | Telemecanique | Quick closure box |
US5004129A (en) * | 1990-01-18 | 1991-04-02 | Itt Corporation | Self-venting container |
US5160064A (en) * | 1991-05-21 | 1992-11-03 | Erw, Inc. | Fuel containment cover assembly |
US5238137A (en) * | 1991-12-16 | 1993-08-24 | Church Of Spiritual Technology | Long-term storage container |
US5346090A (en) * | 1991-02-28 | 1994-09-13 | Anshal, Inc. | Apparatus for refining diamonds |
US5379912A (en) * | 1992-09-05 | 1995-01-10 | Dr. Ing. H.C.F. Porsche Ag | Connecting arrangement for a cover panel |
US5391837A (en) * | 1993-01-15 | 1995-02-21 | General Electric Company | Covered conduit box having a cover which captures screws |
US5489041A (en) * | 1992-08-19 | 1996-02-06 | Halliburton Company | Non-metallic obround blanking hatch apparatus |
US5695068A (en) * | 1994-09-09 | 1997-12-09 | Digital Equipment Corporation | Probe card shipping and handling system |
US5760336A (en) * | 1997-03-26 | 1998-06-02 | Wang; Jack | Burn and explosion-resistant circuit package for a varistor chip |
US5868558A (en) * | 1995-06-14 | 1999-02-09 | Parker; Alexander Martin | Cover for fluid pumps |
US5880400A (en) * | 1996-08-28 | 1999-03-09 | R. Stahl Schaltgerate Gmbh | Metal housing of the "flameproof enclosure" ignition protection type |
US5880401A (en) * | 1996-08-28 | 1999-03-09 | R. Stahl Schaltgerate Gmbh | Plastic housing of the flameproof enclosure ignition protection type |
WO1999011537A1 (en) * | 1997-09-02 | 1999-03-11 | John D. Brush & Co., Inc. | Fire- and water-resistant container |
US6040526A (en) * | 1998-04-02 | 2000-03-21 | Alliedsignal | Access panel retention device |
US6332555B1 (en) * | 1996-07-06 | 2001-12-25 | Kautex Textron Gmbh & Co. Kg. | Fuel tank with opening closed by removable holding cover and sealing ring |
US6372983B1 (en) * | 1999-04-14 | 2002-04-16 | Ballard Generation Systems Inc. | Enclosure for electrical components installed in locations where a flammable gas or vapor is expected to be present |
US20030077363A1 (en) * | 1996-01-24 | 2003-04-24 | Anthony Cadiente | Produce packaging system having produce containers with double-arched bottom ventilation channels |
US20030083038A1 (en) * | 2001-11-01 | 2003-05-01 | Poon King L. | Signal adapter |
US20030198714A1 (en) * | 1996-01-24 | 2003-10-23 | Anthony Cadiente | Method and apparatus for packing and bi-directional cooling of produce |
US6644494B2 (en) | 2001-09-14 | 2003-11-11 | Pactiv Corporation | Smoothwall hinged containers |
US6752092B2 (en) | 2001-07-16 | 2004-06-22 | John D. Brush & Co., Inc. | Fire and water-resistant container |
US20050218150A1 (en) * | 1996-01-24 | 2005-10-06 | Sambrailo Packaging, Inc. | Produce packaging container with dual hinged resealable tops |
US20050242098A1 (en) * | 1996-01-24 | 2005-11-03 | Anthony Cadiente | Produce packaging system having produce containers with arched bottom and raised feet to enable under container ventilation |
US20060005982A1 (en) * | 2004-07-12 | 2006-01-12 | Joy Mm Delaware, Inc. | Permissible controller cover resistant to fastener breakage |
US20060207780A1 (en) * | 2005-03-17 | 2006-09-21 | Toyota Jidosha Kabushiki Kaisha | Electronic component housing structural body |
US20060272840A1 (en) * | 2005-06-01 | 2006-12-07 | Happy Moselle | Fire resistant barrier |
US20070007293A1 (en) * | 1996-01-24 | 2007-01-11 | Sambrailo Packaging, Inc. | Cooling method and nine-down packaging configuration for enhanced cooling of produce |
US20080156807A1 (en) * | 2006-12-27 | 2008-07-03 | Masahiro Kanamaru | Sealing structure of electrical junction box |
US20090008119A1 (en) * | 2006-12-01 | 2009-01-08 | Zamfes Konstandino S | Explosion proof enclosure |
US20090090532A1 (en) * | 2007-10-09 | 2009-04-09 | Asustek Computer Inc. | Housing structure |
US7703628B2 (en) | 1996-01-24 | 2010-04-27 | Sambrailo Packaging, Inc. | Produce packaging system enabling improved drainage for hydrocooling |
US20100258331A1 (en) * | 2009-04-13 | 2010-10-14 | Precision Digital Coraporation | Explosion-proof enclosure |
US7832585B2 (en) | 1996-01-24 | 2010-11-16 | Sambrailo Packaging, Inc. | Nine container per tray packaging configuration and method for enhanced cooling of produce |
WO2011084152A1 (en) * | 2010-01-05 | 2011-07-14 | Cooper Technologies Company | Enclosure clamps and clamp systems |
US20110235243A1 (en) * | 2010-03-26 | 2011-09-29 | Egs Electrical Group, Llc | Sealed Circuit Breaker |
US20120216727A1 (en) * | 2011-02-25 | 2012-08-30 | Huang Liangguo | Portable Fireproof Safe Box |
US20130082061A1 (en) * | 2011-09-29 | 2013-04-04 | General Electric Company | System for locking container assembly |
US8493715B1 (en) * | 2009-09-11 | 2013-07-23 | Lockheed Martin Corporation | Automatically ejecting flight data recorder |
US20130200075A1 (en) * | 2012-02-02 | 2013-08-08 | Kenji Tamura | Casing |
US20130240220A1 (en) * | 2012-03-16 | 2013-09-19 | Hamilton Sundstrand Corporation | Explosion proof by containment enclosure for housing electrical equipment |
US8602245B2 (en) | 2010-01-05 | 2013-12-10 | Cooper Technologies Company | Enclosure clamps and clamp systems |
US8670879B1 (en) * | 2010-04-21 | 2014-03-11 | Lockheed Martin Corporation | Automatically ejecting flight data recorder |
US20140076897A1 (en) * | 2012-09-14 | 2014-03-20 | Joseph Michael Manahan | Cover release mechanisms for enclosures |
US20140138384A1 (en) * | 2012-11-20 | 2014-05-22 | Angela O'Brien | Waterproof Crush Resistant Compartment |
US8737043B2 (en) | 2011-03-10 | 2014-05-27 | Ericson Manufacturing Co. | Electrical enclosure |
WO2014079713A1 (en) * | 2012-11-26 | 2014-05-30 | R. Stahl Schaltgeräte GmbH | Explosion-proof housing made of thermoplastic and welded in a pressure-resistant manner |
US8777535B2 (en) | 2012-05-01 | 2014-07-15 | Cooper Technologies Company | Fastening devices for explosion-proof enclosures |
US20150041015A1 (en) * | 2013-08-07 | 2015-02-12 | Thomas E. Wilson, Jr. | Block-Off Plate Assembly for Carburetor Float Bowl |
WO2015038806A1 (en) * | 2013-09-13 | 2015-03-19 | Cooper Technologies Company | Fastening devices for explosion-proof enclosures |
WO2015038803A1 (en) * | 2013-09-13 | 2015-03-19 | Cooper Technologies Company | Fastening devices for explosion-proof enclosures |
US9097346B1 (en) * | 2013-03-15 | 2015-08-04 | Sypris Technologies, Inc. | Closure lip seal relief |
US20150292546A1 (en) * | 2014-04-09 | 2015-10-15 | Adalet/Scott Fetzer Company | Captive fastener assembly and method |
US9332676B2 (en) | 2011-02-17 | 2016-05-03 | Lear Corporation | Sealed battery charger housing |
WO2017116647A1 (en) * | 2015-12-28 | 2017-07-06 | Cooper Technologies Company | Eddy current joint sensor |
US9867438B2 (en) | 2012-09-26 | 2018-01-16 | Xciel, Inc. | Explosion proof assembly |
US20180124929A1 (en) * | 2016-10-28 | 2018-05-03 | Fujitsu Limited | Electronic device |
US10097677B1 (en) | 2017-10-30 | 2018-10-09 | Xciel, Inc. | Explosion proof assembly |
US10348354B1 (en) | 2018-06-07 | 2019-07-09 | Xciel, Inc. | Explosion proof assembly |
US10361546B2 (en) * | 2017-10-23 | 2019-07-23 | Appleton Grp Llc | Electrical enclosure |
US20200144566A1 (en) * | 2018-11-01 | 2020-05-07 | Contemporary Amperex Technology Co., Limited | Battery box |
USD887366S1 (en) * | 2017-07-20 | 2020-06-16 | Appleton Grp Llc | Power supply housing |
WO2020169471A1 (en) * | 2019-02-22 | 2020-08-27 | R. Stahl Schaltgeräte GmbH | Protective housing in explosion-protection-type pressure-proof encapsulation |
US11181438B2 (en) | 2017-12-15 | 2021-11-23 | Tankbots, Inc. | Methods for performing tasks in a tank containing hazardous substances |
US20220006275A1 (en) * | 2020-07-03 | 2022-01-06 | Sumitomo Wiring Systems, Ltd. | Electrical junction box housing |
US11370210B2 (en) * | 2018-09-11 | 2022-06-28 | Chengdu Boe Optoelectronics Technology Co., Ltd. | Box for loading a film and method for loading a film |
US20220210926A1 (en) * | 2019-05-17 | 2022-06-30 | R. Stahl Schaltgeräte GmbH | Modular system for producing a housing |
US11407145B2 (en) * | 2019-10-28 | 2022-08-09 | United States Gypsum Company | Gypsum slurry mixer output canister |
RU2794987C2 (en) * | 2018-06-05 | 2023-04-27 | Р. Шталь Шальтгерете Гмбх | Explosion-proof enclosure type |
US11690181B2 (en) | 2018-06-05 | 2023-06-27 | R. Stahl Schaltgeräte GmbH | Flameproof housing |
DE102022102793A1 (en) | 2022-02-07 | 2023-08-10 | R. Stahl Schaltgeräte GmbH | Explosion-proof enclosure with reinforcement arrangement |
US11828731B2 (en) | 2019-02-20 | 2023-11-28 | Tankbots, Inc. | Methods for performing tasks inherently safely in a tank containing hazardous substances |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1705131A (en) * | 1924-05-20 | 1929-03-12 | Bethlehem Steel Corp | Closure for receptacles |
US2113776A (en) * | 1935-07-27 | 1938-04-12 | Union Tank Car Co | Tank closure |
GB569165A (en) * | 1943-07-14 | 1945-05-10 | Gen Electric Co Ltd | Improvements in or relating to junction boxes for electric cables |
US3018127A (en) * | 1958-10-30 | 1962-01-23 | Westinghouse Electric Corp | Enclosed device with cover-mounting means |
NL6413957A (en) * | 1963-12-06 | 1965-06-07 | ||
US3240380A (en) * | 1957-08-07 | 1966-03-15 | Mueller Co | Line stopping and valve inserting apparatus and method |
US4063831A (en) * | 1974-05-28 | 1977-12-20 | Constructions Navales Et Industrielles De La Mediterranee | Bolted joint |
-
1986
- 1986-03-10 US US06/839,446 patent/US4664281A/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1705131A (en) * | 1924-05-20 | 1929-03-12 | Bethlehem Steel Corp | Closure for receptacles |
US2113776A (en) * | 1935-07-27 | 1938-04-12 | Union Tank Car Co | Tank closure |
GB569165A (en) * | 1943-07-14 | 1945-05-10 | Gen Electric Co Ltd | Improvements in or relating to junction boxes for electric cables |
US3240380A (en) * | 1957-08-07 | 1966-03-15 | Mueller Co | Line stopping and valve inserting apparatus and method |
US3018127A (en) * | 1958-10-30 | 1962-01-23 | Westinghouse Electric Corp | Enclosed device with cover-mounting means |
NL6413957A (en) * | 1963-12-06 | 1965-06-07 | ||
US4063831A (en) * | 1974-05-28 | 1977-12-20 | Constructions Navales Et Industrielles De La Mediterranee | Bolted joint |
Cited By (137)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4796159A (en) * | 1986-09-26 | 1989-01-03 | R. Stahl Schalterate GmbH | Explosion protected modular housing |
US4993575A (en) * | 1989-06-13 | 1991-02-19 | Telemecanique | Quick closure box |
AP227A (en) * | 1989-06-13 | 1992-12-17 | Telamecanique | Quick closure box. |
US5004129A (en) * | 1990-01-18 | 1991-04-02 | Itt Corporation | Self-venting container |
US5346090A (en) * | 1991-02-28 | 1994-09-13 | Anshal, Inc. | Apparatus for refining diamonds |
US5160064A (en) * | 1991-05-21 | 1992-11-03 | Erw, Inc. | Fuel containment cover assembly |
US5238137A (en) * | 1991-12-16 | 1993-08-24 | Church Of Spiritual Technology | Long-term storage container |
US5489041A (en) * | 1992-08-19 | 1996-02-06 | Halliburton Company | Non-metallic obround blanking hatch apparatus |
US5379912A (en) * | 1992-09-05 | 1995-01-10 | Dr. Ing. H.C.F. Porsche Ag | Connecting arrangement for a cover panel |
US5391837A (en) * | 1993-01-15 | 1995-02-21 | General Electric Company | Covered conduit box having a cover which captures screws |
US5695068A (en) * | 1994-09-09 | 1997-12-09 | Digital Equipment Corporation | Probe card shipping and handling system |
US5868558A (en) * | 1995-06-14 | 1999-02-09 | Parker; Alexander Martin | Cover for fluid pumps |
US6962263B2 (en) | 1996-01-24 | 2005-11-08 | Sambrailo Packaging, Inc. | Produce packaging system having produce containers with double-arched ventilation channels |
US20050218150A1 (en) * | 1996-01-24 | 2005-10-06 | Sambrailo Packaging, Inc. | Produce packaging container with dual hinged resealable tops |
US7441672B2 (en) | 1996-01-24 | 2008-10-28 | Sambrailo Packaging, Inc. | Produce packaging system having produce containers with arched bottom and raised feet to enable under container ventilation |
US7472799B2 (en) | 1996-01-24 | 2009-01-06 | Sambrailo Packaging Inc. | Produce packaging system having produce containers with double-arched bottom ventilation channels |
US8490809B2 (en) | 1996-01-24 | 2013-07-23 | Sambrailo Packaging, Inc. | Produce packaging system enabling improved drainage for hydrocooling |
US20070007293A1 (en) * | 1996-01-24 | 2007-01-11 | Sambrailo Packaging, Inc. | Cooling method and nine-down packaging configuration for enhanced cooling of produce |
US8424701B2 (en) | 1996-01-24 | 2013-04-23 | Sambrailo Packaging, Inc. | Cooling method and nine-down packaging configuration for enhanced cooling of produce |
US20030077363A1 (en) * | 1996-01-24 | 2003-04-24 | Anthony Cadiente | Produce packaging system having produce containers with double-arched bottom ventilation channels |
US7832585B2 (en) | 1996-01-24 | 2010-11-16 | Sambrailo Packaging, Inc. | Nine container per tray packaging configuration and method for enhanced cooling of produce |
US20030198714A1 (en) * | 1996-01-24 | 2003-10-23 | Anthony Cadiente | Method and apparatus for packing and bi-directional cooling of produce |
US20110233077A1 (en) * | 1996-01-24 | 2011-09-29 | Sambrailo Packaging, Inc. | Produce packaging system enabling improved drainage for hydrocooling |
US7703628B2 (en) | 1996-01-24 | 2010-04-27 | Sambrailo Packaging, Inc. | Produce packaging system enabling improved drainage for hydrocooling |
US7980414B2 (en) | 1996-01-24 | 2011-07-19 | Sambrailo Packaging, Inc. | Produce packaging system enabling improved drainage for hydrocooling |
US7100788B2 (en) | 1996-01-24 | 2006-09-05 | Sambrailo Packaging, Inc. | Method and apparatus for packing and bi-directional cooling of produce |
US20050242098A1 (en) * | 1996-01-24 | 2005-11-03 | Anthony Cadiente | Produce packaging system having produce containers with arched bottom and raised feet to enable under container ventilation |
US7413094B2 (en) | 1996-01-24 | 2008-08-19 | Sambrailo Packaging, Inc. | Method and apparatus for packing and bi-directional cooling of produce |
US20100155267A1 (en) * | 1996-01-24 | 2010-06-24 | Sambrailo Packaging, Inc. | Produce packaging system enabling improved drainage for hydrocooling |
US20060027578A1 (en) * | 1996-01-24 | 2006-02-09 | Sambrailo Packaging, Inc. | Produce packaging system having produce containers with double-arched bottom ventilation channels |
US8083085B2 (en) | 1996-01-24 | 2011-12-27 | Sambrailo Packaging, Inc. | Cooling method and nine-down packaging configuration for enhanced cooling of produce |
US6332555B1 (en) * | 1996-07-06 | 2001-12-25 | Kautex Textron Gmbh & Co. Kg. | Fuel tank with opening closed by removable holding cover and sealing ring |
US5880400A (en) * | 1996-08-28 | 1999-03-09 | R. Stahl Schaltgerate Gmbh | Metal housing of the "flameproof enclosure" ignition protection type |
US5880401A (en) * | 1996-08-28 | 1999-03-09 | R. Stahl Schaltgerate Gmbh | Plastic housing of the flameproof enclosure ignition protection type |
US5760336A (en) * | 1997-03-26 | 1998-06-02 | Wang; Jack | Burn and explosion-resistant circuit package for a varistor chip |
WO1999011537A1 (en) * | 1997-09-02 | 1999-03-11 | John D. Brush & Co., Inc. | Fire- and water-resistant container |
US6040526A (en) * | 1998-04-02 | 2000-03-21 | Alliedsignal | Access panel retention device |
US6372983B1 (en) * | 1999-04-14 | 2002-04-16 | Ballard Generation Systems Inc. | Enclosure for electrical components installed in locations where a flammable gas or vapor is expected to be present |
US6752092B2 (en) | 2001-07-16 | 2004-06-22 | John D. Brush & Co., Inc. | Fire and water-resistant container |
US6845878B2 (en) | 2001-09-14 | 2005-01-25 | Pactiv Corporation | Containers |
US6644494B2 (en) | 2001-09-14 | 2003-11-11 | Pactiv Corporation | Smoothwall hinged containers |
US7319191B2 (en) * | 2001-11-01 | 2008-01-15 | Thermo Fisher Scientific Inc. | Signal adapter |
US20030083038A1 (en) * | 2001-11-01 | 2003-05-01 | Poon King L. | Signal adapter |
US7005576B2 (en) * | 2004-07-12 | 2006-02-28 | Joy Mm Delaware, Inc. | Permissible controller cover resistant to fastener breakage |
US20060005982A1 (en) * | 2004-07-12 | 2006-01-12 | Joy Mm Delaware, Inc. | Permissible controller cover resistant to fastener breakage |
US7208678B2 (en) * | 2005-03-17 | 2007-04-24 | Toyota Jidosha Kabushiki Kaisha | Electronic component housing structural body |
US20060207780A1 (en) * | 2005-03-17 | 2006-09-21 | Toyota Jidosha Kabushiki Kaisha | Electronic component housing structural body |
US7208677B2 (en) * | 2005-06-01 | 2007-04-24 | Happy Moselle | Fire resistant barrier |
US20060272840A1 (en) * | 2005-06-01 | 2006-12-07 | Happy Moselle | Fire resistant barrier |
US20090008119A1 (en) * | 2006-12-01 | 2009-01-08 | Zamfes Konstandino S | Explosion proof enclosure |
US7723614B2 (en) * | 2006-12-01 | 2010-05-25 | Konstandino Zamfes | Explosion proof enclosure |
US20080156807A1 (en) * | 2006-12-27 | 2008-07-03 | Masahiro Kanamaru | Sealing structure of electrical junction box |
US20090090532A1 (en) * | 2007-10-09 | 2009-04-09 | Asustek Computer Inc. | Housing structure |
US8053668B2 (en) * | 2007-10-09 | 2011-11-08 | Asustek Computer Inc. | Housing structure |
US20100258331A1 (en) * | 2009-04-13 | 2010-10-14 | Precision Digital Coraporation | Explosion-proof enclosure |
US8227692B2 (en) | 2009-04-13 | 2012-07-24 | Precision Digital Corporation | Explosion-proof enclosure |
US8493715B1 (en) * | 2009-09-11 | 2013-07-23 | Lockheed Martin Corporation | Automatically ejecting flight data recorder |
US9221587B2 (en) | 2010-01-05 | 2015-12-29 | Cooper Technologies Company | Enclosure clamps and clamp systems |
CN102791168A (en) * | 2010-01-05 | 2012-11-21 | 库柏技术公司 | Enclosure clamps and clamp systems |
CN102791168B (en) * | 2010-01-05 | 2014-12-17 | 库柏技术公司 | Enclosure clamps and clamp systems |
US9284101B2 (en) | 2010-01-05 | 2016-03-15 | Cooper Technologies Company | Enclosure clamps and clamp systems |
WO2011084152A1 (en) * | 2010-01-05 | 2011-07-14 | Cooper Technologies Company | Enclosure clamps and clamp systems |
US8602245B2 (en) | 2010-01-05 | 2013-12-10 | Cooper Technologies Company | Enclosure clamps and clamp systems |
US20110235243A1 (en) * | 2010-03-26 | 2011-09-29 | Egs Electrical Group, Llc | Sealed Circuit Breaker |
US8508917B2 (en) * | 2010-03-26 | 2013-08-13 | Egs Electrical Group, Llc | Sealed circuit breaker |
US8670879B1 (en) * | 2010-04-21 | 2014-03-11 | Lockheed Martin Corporation | Automatically ejecting flight data recorder |
US9332676B2 (en) | 2011-02-17 | 2016-05-03 | Lear Corporation | Sealed battery charger housing |
DE102012202270B4 (en) * | 2011-02-17 | 2017-04-06 | Lear Corporation | Sealed battery charger housing |
US20120216727A1 (en) * | 2011-02-25 | 2012-08-30 | Huang Liangguo | Portable Fireproof Safe Box |
US9420710B2 (en) | 2011-03-10 | 2016-08-16 | Ericson Manufacturing Co. | Electrical enclosure |
US10008352B2 (en) | 2011-03-10 | 2018-06-26 | Ericson Manufacturing Co. | Electrical enclosure |
US8737043B2 (en) | 2011-03-10 | 2014-05-27 | Ericson Manufacturing Co. | Electrical enclosure |
US20130082061A1 (en) * | 2011-09-29 | 2013-04-04 | General Electric Company | System for locking container assembly |
US8689996B2 (en) * | 2011-09-29 | 2014-04-08 | General Electric Company | System for locking container assembly |
US20130200075A1 (en) * | 2012-02-02 | 2013-08-08 | Kenji Tamura | Casing |
US9592411B2 (en) * | 2012-03-16 | 2017-03-14 | Hamilton Sundstrand Corporation | Explosion proof by containment enclosure for housing electrical equipment |
US20130240220A1 (en) * | 2012-03-16 | 2013-09-19 | Hamilton Sundstrand Corporation | Explosion proof by containment enclosure for housing electrical equipment |
US20150239632A1 (en) * | 2012-03-16 | 2015-08-27 | Hamilton Sundstrand Corporation | Explosion proof by containment enclosure for housing electrical equipment |
US9066420B2 (en) * | 2012-03-16 | 2015-06-23 | Hamilton Sundstrand Corporation | Explosion proof by containment enclosure for housing electrical equipment |
US8777535B2 (en) | 2012-05-01 | 2014-07-15 | Cooper Technologies Company | Fastening devices for explosion-proof enclosures |
US10100869B2 (en) | 2012-05-01 | 2018-10-16 | Cooper Technologies Company | Fastening devices for explosion-proof enclosures |
US9217460B2 (en) | 2012-05-01 | 2015-12-22 | Cooper Technologies Company | Fastening devices for explosion-proof enclosures |
US9217459B2 (en) | 2012-05-01 | 2015-12-22 | Cooper Technologies Company | Fastening devices for explosion-proof enclosures |
US9145912B2 (en) | 2012-05-01 | 2015-09-29 | Cooper Technologies Company | Fastening devices for explosion-proof enclosures |
US20140076897A1 (en) * | 2012-09-14 | 2014-03-20 | Joseph Michael Manahan | Cover release mechanisms for enclosures |
CN104736443B (en) * | 2012-09-14 | 2017-04-12 | 库帕技术公司 | Cover release mechanisms for enclosures |
CN104781155A (en) * | 2012-09-14 | 2015-07-15 | 库帕技术公司 | Fastening devices for explosion-proof enclosures |
US9428312B2 (en) * | 2012-09-14 | 2016-08-30 | Cooper Technologies Company | Cover release mechanisms for enclosures |
CN104736443A (en) * | 2012-09-14 | 2015-06-24 | 库帕技术公司 | Cover release mechanisms for enclosures |
KR20150054827A (en) * | 2012-09-14 | 2015-05-20 | 쿠퍼 테크놀로지스 컴파니 | Fastening device for explosion-proof enclosures |
WO2014042680A1 (en) * | 2012-09-14 | 2014-03-20 | Cooper Technologies Company | Cover release mechanisms for enclosures |
US8844749B2 (en) | 2012-09-14 | 2014-09-30 | Cooper Technologies Company | Fastening devices for explosion-proof enclosures |
KR102115056B1 (en) * | 2012-09-14 | 2020-05-25 | 쿠퍼 테크놀로지스 컴파니 | Fastening device for explosion-proof enclosures |
CN104781155B (en) * | 2012-09-14 | 2017-04-19 | 库帕技术公司 | Fastening devices for explosion-proof enclosures |
US9867438B2 (en) | 2012-09-26 | 2018-01-16 | Xciel, Inc. | Explosion proof assembly |
US20140138384A1 (en) * | 2012-11-20 | 2014-05-22 | Angela O'Brien | Waterproof Crush Resistant Compartment |
WO2014079713A1 (en) * | 2012-11-26 | 2014-05-30 | R. Stahl Schaltgeräte GmbH | Explosion-proof housing made of thermoplastic and welded in a pressure-resistant manner |
US9097346B1 (en) * | 2013-03-15 | 2015-08-04 | Sypris Technologies, Inc. | Closure lip seal relief |
US20150041015A1 (en) * | 2013-08-07 | 2015-02-12 | Thomas E. Wilson, Jr. | Block-Off Plate Assembly for Carburetor Float Bowl |
US20160264313A1 (en) * | 2013-09-13 | 2016-09-15 | Yabin Zhao | Fastening devices for explosion-proof enclosures |
CN105722764B (en) * | 2013-09-13 | 2018-02-02 | 库珀技术公司 | Fastener for explosion-proof case |
CN105722764A (en) * | 2013-09-13 | 2016-06-29 | 库珀技术公司 | Fastening devices for explosion-proof enclosures |
US9366058B2 (en) * | 2013-09-13 | 2016-06-14 | Cooper Technologies Company | Fastening devices for explosion-proof enclosures |
WO2015038806A1 (en) * | 2013-09-13 | 2015-03-19 | Cooper Technologies Company | Fastening devices for explosion-proof enclosures |
US10569938B2 (en) * | 2013-09-13 | 2020-02-25 | Eaton Intelligent Power Limited | Fastening devices for explosion-proof enclosures |
WO2015038803A1 (en) * | 2013-09-13 | 2015-03-19 | Cooper Technologies Company | Fastening devices for explosion-proof enclosures |
CN105745159A (en) * | 2013-09-13 | 2016-07-06 | 库珀技术公司 | Fastening devices for explosion-proof enclosures |
US20150076841A1 (en) * | 2013-09-13 | 2015-03-19 | Yabin Zhao | Fastening devices for explosion-proof enclosures |
US9272821B2 (en) | 2013-09-13 | 2016-03-01 | Cooper Technologies Company | Fastening devices for explosion-proof enclosures |
US20150292546A1 (en) * | 2014-04-09 | 2015-10-15 | Adalet/Scott Fetzer Company | Captive fastener assembly and method |
US10669088B2 (en) | 2015-12-28 | 2020-06-02 | Eaton Intelligent Power Limited | Eddy current joint sensor |
WO2017116647A1 (en) * | 2015-12-28 | 2017-07-06 | Cooper Technologies Company | Eddy current joint sensor |
US20180124929A1 (en) * | 2016-10-28 | 2018-05-03 | Fujitsu Limited | Electronic device |
USD887366S1 (en) * | 2017-07-20 | 2020-06-16 | Appleton Grp Llc | Power supply housing |
US10361546B2 (en) * | 2017-10-23 | 2019-07-23 | Appleton Grp Llc | Electrical enclosure |
US10291757B1 (en) | 2017-10-30 | 2019-05-14 | Xciel, Inc. | Explosion proof assembly |
US10097677B1 (en) | 2017-10-30 | 2018-10-09 | Xciel, Inc. | Explosion proof assembly |
US11181438B2 (en) | 2017-12-15 | 2021-11-23 | Tankbots, Inc. | Methods for performing tasks in a tank containing hazardous substances |
US11604180B2 (en) | 2017-12-15 | 2023-03-14 | Tankbots, Inc. | Voltage differential reduction methods used while retrieving a mobile platform from a tank containing a hazardous, non-conductive substance |
US11536705B2 (en) | 2017-12-15 | 2022-12-27 | Tankbots, Inc. | Methods for controlling charge accumulation while operating a mobile platform immersed in a hazardous, non-conductive substance |
US11415566B2 (en) | 2017-12-15 | 2022-08-16 | Tankbots, Inc. | Methods utilizing a tethered buoyant body to retrieve a mobile platform from a tank containing a hazardous substance |
US11690181B2 (en) | 2018-06-05 | 2023-06-27 | R. Stahl Schaltgeräte GmbH | Flameproof housing |
RU2794987C2 (en) * | 2018-06-05 | 2023-04-27 | Р. Шталь Шальтгерете Гмбх | Explosion-proof enclosure type |
US11018711B2 (en) | 2018-06-07 | 2021-05-25 | Xciel, Inc. | Explosion proof assembly |
US10700729B2 (en) | 2018-06-07 | 2020-06-30 | Xciel, Inc. | Explosion proof assembly |
US10348354B1 (en) | 2018-06-07 | 2019-07-09 | Xciel, Inc. | Explosion proof assembly |
US11370210B2 (en) * | 2018-09-11 | 2022-06-28 | Chengdu Boe Optoelectronics Technology Co., Ltd. | Box for loading a film and method for loading a film |
US11780645B2 (en) * | 2018-11-01 | 2023-10-10 | Contemporary Amperex Technology Co., Limited | Battery box |
US20200144566A1 (en) * | 2018-11-01 | 2020-05-07 | Contemporary Amperex Technology Co., Limited | Battery box |
US11828731B2 (en) | 2019-02-20 | 2023-11-28 | Tankbots, Inc. | Methods for performing tasks inherently safely in a tank containing hazardous substances |
CN113424382A (en) * | 2019-02-22 | 2021-09-21 | R.施塔尔开关设备有限责任公司 | Protective housing in explosion-proof enclosure of explosion-proof type |
WO2020169471A1 (en) * | 2019-02-22 | 2020-08-27 | R. Stahl Schaltgeräte GmbH | Protective housing in explosion-protection-type pressure-proof encapsulation |
US20220210926A1 (en) * | 2019-05-17 | 2022-06-30 | R. Stahl Schaltgeräte GmbH | Modular system for producing a housing |
US11407145B2 (en) * | 2019-10-28 | 2022-08-09 | United States Gypsum Company | Gypsum slurry mixer output canister |
US11769993B2 (en) * | 2020-07-03 | 2023-09-26 | Sumitomo Wiring Systems, Ltd. | Electrical junction box housing |
US20220006275A1 (en) * | 2020-07-03 | 2022-01-06 | Sumitomo Wiring Systems, Ltd. | Electrical junction box housing |
DE102022102793A1 (en) | 2022-02-07 | 2023-08-10 | R. Stahl Schaltgeräte GmbH | Explosion-proof enclosure with reinforcement arrangement |
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